This is what i currently have. I need to get the layout again and then position everything and label but generally I think it should all fit.

This device should be able to handle up to 10 amps, which should be more than enough for what we need, can discuss optimization.

Do have a few questions, specifically about Vcc and SS, I think both can be 3v3 dig, but need to double check

How does your board get power again? Essentially I need 3v3 dig for a few components, do you have a power source, or do I need to build a splitter from input

Do you think I need a fuse? Or more decoupling caps. I used the setup recommended in the schematic, but we could always add more safety if needed.